IPA: /ˈbɪtərɪst/
KK: /ˈbɪtərɪst/
The most unpleasantly sharp taste, often associated with certain foods or drinks, that can cause a strong negative reaction.
The bitterest part of the experience was realizing how much I had lost.
Comparative: more bitter
Superlative: bitterest
Bitterest → It is formed from "bitter" (from Old English "biter", meaning having a sharp taste or smell) and the superlative suffix "-est" (meaning most). The word "bitterest" means having the most intense sharp taste or unpleasantness.
Think of the Old English word for sharp taste, 'biter', and remember that 'bitterest' means the most intense form of that sharp taste.